diff options
Diffstat (limited to 'mm/kasan/kasan_test_module.c')
| -rw-r--r-- | mm/kasan/kasan_test_module.c | 30 |
1 files changed, 0 insertions, 30 deletions
diff --git a/mm/kasan/kasan_test_module.c b/mm/kasan/kasan_test_module.c index e4ca82dc2c16..4688cbcd722d 100644 --- a/mm/kasan/kasan_test_module.c +++ b/mm/kasan/kasan_test_module.c @@ -62,35 +62,6 @@ static noinline void __init copy_user_test(void) kfree(kmem); } -static struct kasan_rcu_info { - int i; - struct rcu_head rcu; -} *global_rcu_ptr; - -static noinline void __init kasan_rcu_reclaim(struct rcu_head *rp) -{ - struct kasan_rcu_info *fp = container_of(rp, - struct kasan_rcu_info, rcu); - - kfree(fp); - ((volatile struct kasan_rcu_info *)fp)->i; -} - -static noinline void __init kasan_rcu_uaf(void) -{ - struct kasan_rcu_info *ptr; - - pr_info("use-after-free in kasan_rcu_reclaim\n"); - ptr = kmalloc(sizeof(struct kasan_rcu_info), GFP_KERNEL); - if (!ptr) { - pr_err("Allocation failed\n"); - return; - } - - global_rcu_ptr = rcu_dereference_protected(ptr, NULL); - call_rcu(&global_rcu_ptr->rcu, kasan_rcu_reclaim); -} - static noinline void __init kasan_workqueue_work(struct work_struct *work) { kfree(work); @@ -130,7 +101,6 @@ static int __init test_kasan_module_init(void) bool multishot = kasan_save_enable_multi_shot(); copy_user_test(); - kasan_rcu_uaf(); kasan_workqueue_uaf(); kasan_restore_multi_shot(multishot); |